[docs] [issue7951] Should str.format allow negative indexes when used for __getitem__ access?

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

A side question: where is it defined that in `{thing[0]}`, 0 will be parsed as an integer?

The PEP shows `{thing[name]}` and mentions that this is not Python but a smaller mini-language, with `name` always a string, no quotes needed or permitted.

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